Questions tagged [metadata]

Information stored in or out of band about a file describing secondary characteristics.

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Looking for macro/script to generate a list of images where 'date taken' is blank and list of images where 'date taken' <> 'date created' [closed]

I am centralizing my images on the icloud accessed via my OS Sierra v10.12.6-2009 iMac. I have been using an app called photo exifer to bulk modify dates (taken, created) and names of various images &...
karenmack's user avatar
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Multiple tags in Music

I separate tags using the semicolon, but macOS' inbuilt Music app doesn't appear to recognize them as separate tags. As a result, I see entries, such as "Cover; Dance" and "CoverJazz&...
gargoylebident's user avatar
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1 answer
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How to export edited pictures from 'Photos" app with Applescript while preserving the image metadata?

I have written long ago an Applescript script that exports pictures selected in Apple Photos app with various basic options, such as adding borders, adjusting size, tuning for Web publishing, etc, and ...
Yves's user avatar
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1 answer
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Duration of MP3 files in metadata

For language study, I frequently download nine MP3 files from several different sources, and import them into Music.app.  All are monaural (i.e., single track).  Music.app shows the wrong duration for ...
WGroleau's user avatar
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Is Live Text OCR data stored somewhere?

I’m finding the Live Text feature on iOS to be incredibly useful. For example, it allows me to copy example sentences from the Duolingo language-learning app if I save the sentence as screenshot. I’d ...
EJ Mak's user avatar
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Finder: show specific EXIF data for RAW photos

I want to see the focus distance exif data in the finder. This data is available for all the photos taken by the camera but the Preview Options - Image pane doesn't provide it. Consequently finder ...
massisenergy's user avatar
1 vote
3 answers
175 views

How can I edit Books’ metadata on iOS?

On iPhone SE 2 running iOS 16.6.1, there is no feature to edit the “Author” field in the Books app, for PDFs. There is no feature to edit the metadata of files in the Files app either:
Julius Hamilton's user avatar
2 votes
1 answer
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How can I make my MacBook Air show the file info the way the old macOS does?

My old MacBook Pro running macOS 10.13.6 gives all the info I care about in the Finder when I select the file in interest, pointed out by the red rectangle. My new M1 MacBook Air running macOS 13 ...
JJJohn's user avatar
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Errors from PerfPowerTelemetry/PerfPowerServices

I see these recurring errors from PerfPowerTelemetry No metadata for metric: InstantAmperage No metadata for metric: AppleRawCurrentCapacity No metadata for metric: CycleCount No metadata for ...
marathon's user avatar
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2 votes
1 answer
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No location in metadata of place when in plane?

I have noticed when taking photos in airplane, the phone has no metadata. I don’t know why but is there a app which can save metadata of where the plane is passing like offline google maps for ...
localhost's user avatar
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Transfer MP3s with metadata from iTunes to Apple Music

I have ~6,000 MP3's on my old iMac in an iTunes folder, using the old iTunes Library.itl and iTunes Music Library.xml file structure. I have a new MBA with Apple Music and ~20 MP3 files using the ...
Dan Christian's user avatar
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32 views

Batch add or edit the 'Where from' extended attribute

I'm looking to do something similar to Manually enter "Where From" text for screenshot Metadata? except I would like to add or edit the existing 'Where from' metadata. For example when I ...
themys's user avatar
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1 answer
75 views

How to only overwrite metadata (specifically date file attributes) between files that have the same contents with the older/more accurate attributes?

I have a situation where a backup has correct Date Modified and other correct metadata. A large volume of these files were copied accidentally without the correct rsync flags (eg, rsync -a does not ...
ylluminate's user avatar
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509 views

How to rebuild Music.app library—or prevent corruption

What’s the easiest way to fix corruption in the library of Music.app? In Music.app library, I had an album that showed two discs. The last four songs on disk one could't be selected and none of the ...
WGroleau's user avatar
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2 votes
1 answer
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Where is the URI of a downloaded file stored?

If I "Get Info" on an image I downloaded, I see the URI of the original: Where/how is this stored? I'd like to come up with a command-line way of getting it from multiple files. Neither ...
WGroleau's user avatar
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2 votes
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Batch change album/artist info – not working when files are missing?

Some time during the transition from iTunes to Music (or perhaps another time), more than a thousand of my songs got mangled and the links from the library to the files were broken. I have my media ...
Janus Bahs Jacquet's user avatar
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Writing metadata with xattr not working

I do xattr -w com.apple.metadata:kMDItemFinderComment "This is a comment" WnalU.png but when I look at the file comments: I tried restarting Finder and nothing. I've googled about writing ...
mariano-daniel's user avatar
4 votes
0 answers
106 views

Does MacOS store information locally about external drives?

I used a borrowed Mac to transfer sensitive data directly between two USB thumb drives. Ideally, I'd like to not leave a single trace of the files and transfers on the borrowed Mac, but I understand ...
genbatro's user avatar
6 votes
1 answer
2k views

Where does Music.app store album art?

I'd like to export the artwork images for adding to my collection on the new laptop. I have a very esoteric music collection and I recently got a new Mac. I spent a fair amount of time with my old one ...
Jared Smith's user avatar
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2 answers
103 views

Identify "UNIX-specific directories" in macOS

According to Apple's File System Programming Guide, macOS includes so-called UNIX-specific directories: The directories in this category are inherited from traditional UNIX installations. They are an ...
Jake Ireland's user avatar
1 vote
2 answers
1k views

Receive photos from iPhone users while keeping EXIF metadata (time, location,...)

I need to collect photos from all my friends, some of whom use iPhone. (I have no Apple devices btw). Usually, I send people a link using which they upload all their photos to my cloud through a web ...
Vít Skalický's user avatar
2 votes
1 answer
693 views

Annotating macOS Maps locations with personal notes

I’d like to annotate map locations with “check out this art piece when you’re at this gallery” or “my favourite is the bibimbap” for a restaurant. It would be really cool to be able to link to a Notes....
Edward Ocampo-Gooding's user avatar
0 votes
1 answer
190 views

VLC for macOS shows playlist title/name that is nowhere to be found

When I open a renamed voice memo file (macOS or iOS generated) in VLC, the playlist name shown is the one generated by Voice Memos (usually the last know location of the machine on which the memo was ...
pdeli's user avatar
  • 633
1 vote
1 answer
174 views

"Private" data in ID3 tags created by Music

Music.app deleted 21 or more audio files in an unexpected way.  Some of those files have "Private" ID3 data which exiftool says has an “Invalid ID3 frame size.”  Some of the files with the ...
WGroleau's user avatar
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0 votes
2 answers
296 views

Why do Finder tags still appear on my Finder side pane when the tagged files are missing or not accessible?

As a follow up to Does macOS store the tags of Finder separately from the tagged files?, I now understand that Finder tags are stored in the metadata of files, together in the same disk as the one ...
forgodsakehold's user avatar
1 vote
2 answers
2k views

How to get all Apple Photos file names

Is there a way to get a manifest or listing of all file names from Apple Photos without having to download\export them all? I have a few thousand photos that are duplicated by file name but with a ...
javamonkey79's user avatar
1 vote
1 answer
348 views

mdfind using -name option

I get this result: user@10 $  mdfind kind:application -name "Seashore" -onlyin /Volumes/WD\ Elements /Volumes/WD Elements/backup 2018/Desktop/Seashore.app /Volumes/WD Elements/backup Juli ...
mariano-daniel's user avatar
6 votes
1 answer
2k views

How to stop com.apple.metadata:kMDItemWhereFroms attribute from being saved in files downloaded from browser?

Recently I found out that macOS saves full download link to metadata of file which kept when file moves between computers which I found a big security risk for me. Is it possible to disable saving ...
VityaSchel's user avatar
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55 views

Iphone Music Metadata/Encoding data showing & hide

I play .mp3s via my iPhone Music application. However on this album, there is additional metadata / encoding data (unsure what the correct terminology is here) that is displayed below the Play and ...
af3ld's user avatar
  • 111
2 votes
1 answer
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Metadata not showing in Finder window for images on external drive

I have two Macs: an Intel Mac mini (2018, running Catalina 10.15.7 I think) and an M1 MacBook Pro (2020, running Big Sur 11.6.1). I have an external SSD which I use for lots of work stuff. On both ...
Janus Bahs Jacquet's user avatar
1 vote
1 answer
237 views

Restore music metadata after SSD loss

So a month ago I lost my 2020 MacBook Air's SSD (which had been running Catalina) to a coffee spill; the computer is now fixed (and upgraded to Monterey) but the drive is wiped. The documents had been ...
Displaced Hoser's user avatar
4 votes
1 answer
2k views

How do mdfind and mdls derive what metadata a file has and where is it stored?

The man page of mdfind says the following: The mdfind command consults the central metadata store and returns a list of files that match the given metadata query. The query can be a string or a query ...
Blink's user avatar
  • 45
0 votes
1 answer
202 views

Unable to remove ghost tags on files

System: macOS 11.6.1, MBP 2019 16in I am having a persistent issue with certain tags. I have a tag, call it "post", that I use as a toggle. I set it on files that I need to find to upload to ...
Jeffrey J Weimer's user avatar
1 vote
2 answers
419 views

Adding metadata/keywords to pdf

What software, either Apple built-in or open-source, could add metadata/keywords to a pdf document? I have tried Inkscape, but that overwrites metadata. I want to add keywords specifically to an ...
paulj's user avatar
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0 votes
0 answers
623 views

How to share photos from iOS as JPG with EXIF?

I want to share photos with friends in JPG, but need to keep its metadata (time taken, GPS coordinates...) in EXIF. I tried to send them via web-based filesharing service. JPGs was uploaded, but all ...
Lluser's user avatar
  • 113
0 votes
0 answers
55 views

How can I find files that don't contain specific metadata?

I recently discovered that a currently-unknown number of files on in my music collection have been corrupted or otherwise damaged. These files do not play in the Apple Music app, even though they look ...
Tony Forbes's user avatar
1 vote
1 answer
49 views

Where's "More Info" gone?

Recently I moved from 10.13 to 10.14 on an older Mac system. Previously, tapping on an audio file and keying "command + i" would tell me some audio info, such as stereo, channels, bit depth; ...
cheakypawl's user avatar
1 vote
0 answers
37 views

Get .app path from a bundle ID? [duplicate]

Say I have a bundle ID com.apple.Safari, how do I get the path to the app bundle (.app) (/System/Volumes/Data/Applications/Safari.app) from that? I need this for my script to automate a task.
Teddy C's user avatar
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2 votes
1 answer
2k views

Does macOS Photos have a QR code reader built in somehow, does it decode codes in images?

I just imported a group of photos from my iPhone to Photos in macOS and the application "hiccuped" twice at the point where it read in two images of complicated QR-codes. "hiccuped"...
uhoh's user avatar
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0 votes
0 answers
183 views

Is it possible to view video/audio information in finder or a similar program

From what I can see finder cannot display codec, resolution, bitrate, basic metadata about batches of video and audio files that would be really helpful. As there any way to achieve this or a program ...
Toddd's user avatar
  • 61
0 votes
0 answers
35 views

How to keep photo date when dragging photos out of Photos app into a folder on Mac? [duplicate]

I have encountered what is to me a deeply distressing and frustrating behavior of the Photos app for Mac. I would like to know if there is a workaround. A bit of background: I use iCloud to sync my ...
Michael Swarts's user avatar
1 vote
0 answers
42 views

Migrating musics from Windows Media Player to Apple Music

I've recently moved from Windows to macOS, and I'm trying to import my local music library into the Music app installed on macOS Big Sur. I have about 30k mp3 files that I've star-rated over a decade, ...
Johansson's user avatar
  • 111
2 votes
1 answer
364 views

Can I detect the frame rate of a video using built in programs or tools?

I want to match the frame rate of a video I am editing to a project. But I don't know the frame rate. Is there an easy way to check the frame rate of a video using built-in tools or programs?
Joshua Dance's user avatar
  • 1,873
5 votes
0 answers
297 views

Where does the iOS Photos app store user-entered captions?

I understand that the ability to add captions to photos was added in iOS 14. Where are these captions stored? For example, are they embedded into the .HEIC file as EXIF or XMP or IPTC metadata? Or a ...
jl6's user avatar
  • 211
2 votes
3 answers
1k views

What exactly is chflags opaque, nodump?

I've gotten to grips with the chflags man page so far, even if it's rather uncommon for man pages. Nevertheless, I find 2 parameters very peculiar. What exactly does chflags opaque and nodump do? ...
BabyBoy's user avatar
  • 935
3 votes
1 answer
492 views

How can I find the metadata of a file in Scanner app?

I am a teacher, and I am trying to verify the date and time when a student took a particular photo. The student has an iPhone (unknown model and OS version) and used the Scanner app by Luni to take ...
Yiab's user avatar
  • 31
10 votes
3 answers
23k views

Delete metadata

There is a program provided by Apple to see most of the metadata in a file. It is nice to have the metadata clearly arranged, but the catch is that you cannot delete it or I don't know how to delete ...
BabyBoy's user avatar
  • 935
1 vote
1 answer
358 views

How to assign latitude & longitude to a photo "Location" in Photos 6?

I have a specific latitude and longitude that I would like to assign to a photo that does not otherwise have any location information. eg. (18.352185, -64.792505) aka 18 deg 22' 26.46" N, 64 deg ...
NoahR's user avatar
  • 193
1 vote
1 answer
52 views

Importing album art from ripped music

I have over 130+ artists with 1000s of tracks all sorted and with valid metadata externally to the Music / iTune app on my Mac (Catalina). The folder layout is Artist / Album / CD in Album (ranges 1-...
user avatar
2 votes
0 answers
170 views

Where is Metadata of Encoding in Plain Text Saved from TextEdit

TextEdit allows for plain text .txt files to be saved with a particular character encoding: Is there any meaningful change to the file's metadata and if so, how do you see it?
fdcpp's user avatar
  • 63

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